Set-up bolt



Patented Jan. 2, 1.923.

. uNrrED ,STA

AT ENT ortica.

HERBERT JOHN MATHIAS, RIVERSIDE, *NEW JERSEY, ASSIGNOR T04 MATHIAS-VANDYKE COMPANY, OF TRENTON, NEW JERSEY, A PARTNERSHIP COMPOSED OF HIM-SELF AND ELMER ivi. VAN DYKE.

Application filed November 25, 1919. V Serial No. 340,640.

To all whom'it may concern.'

Be it known that'l, HERBERT JOHN MA- THIAS, a citizen ofthe UnitedStates, residing at Riverside, in the county of Burlington and State ofNew Jersey, have invented certain new and useful Improvements in Set-'Up Bolts; and-I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled innthe art to which it appertains to make and use the same.

My-invention relates to bolts, but more particularly to such as areknown to metal workers as setting-up bolts, and with still greaterparticularity to bolts of the class indicated, having a removable orquickly detachable head. 1

In structural iron andsteel work, such for example as the fabrication ofhulls for vessels in Shipyards, the building of bridges, the erection ofmodern steel frames for buildings, the manufacture of boilers, and4sheets,l

generally, wherever steel plates, shapes, Aangle-irons, beams, girdersand the like are to be secured together by rivets, it

. has heretofore been the custom to temporai-ily secure such memberstogether, and to pu'll or draw them into proper contact and alinement,by the employment ofordinary screw bolts and nuts. After such setting-upprocess the riveters follow, but obviously be- .fore a rivet can beintroduced into any particular set of holes by the methods prevailing atpresent, it is firstnecessary to remove the correspondingtevinporarybolt. this being accomplished by means of an ordinary wrench, and thecomplete removal from said bolt of its threaded nut, after which it isStill necessary to drive the bolt out head first. this frequentlyresulting in serious mutilation of the bolt threads in whole or in part.As a consequence the repair and maintenance of such bolts in a shipyard,for eX- aniple, where tons of them are used, repre- 'sentsan itemV ofvery considerable expense.

l`o overcome the difhculties aforesaid is thereforevan object of mypresent invention,

by dispensing with the use of ordinary bolts having fixed heads andremovable nuts.

A further object is the production of setting-up bolts comprising anovel arrangement and combination of a solid top cap like bolt head ornut removablypositioned at one end of the bolt, and an ordinary pullupmit screw-threaded on the o osite end of said bolt. p. Pp

in the following specification, and the novel features of the presentinvention will be particularly pointed out in the appended claims. I Inthe accompanying drawings which form part of this application forLetters Patent, and whereon corresponding numerals indicate like 'partsin the several illustrations:

l igure 1 isa side elevation of .a settingup bolt embodying one form ofthe present invention, and including a quickly detachable head, thelatter being here shown lin section; .i

l* igui'e 2 is an end view of bolt with head removed;

Other objects and advantages Will appear Figure 3 is a facel view of thebolt head detached, looking into its threaded interior;

Figure L1 is a transverse sectional view taken through bolt head andbolt on the line of Figure 1, before said parts have been interlocked bya partial rotation of said head; and i Figure 5 is a view correspondingWith Figure et, except that here the bolt head has been rotatedsufficiently to firmly interlock it upon the inner end of bolt.

Reference being had to the drawings and numerals,thereon` 10`indicates abolt body or shank, and 11 an ordinary standard pullup nut in threadedrelation with the outer end of said shank;

The opposite end of bolt 1() is also threaded as shown by Figure 1 at1Q, but, as best shown b v Figure Q, the latterthreads are mutilated orcut awayat points diametrically opposite as at 13, 13, for purposeswhich will later appear. V

Enclosing threads 12 at theinner end of bolt 10 is a cap-like nut 1.4serving as the head Vof the bolt, having an unbroken solid outer end,and formed of any approved eX- terior configuration, size 'and materiaktion may be briefly set forth as follows;

Because of the mutilation of threads 12 upon opposite sides of the bolt10, and of a like mutilation of threads 15 at opposite sides of theinterior of the bolthead 14, it will be observed'that in the presentillus-A trations the exterior of the boltat its inner end, and theinterior opening of its removable head 14, are each substantiallyelliptical in cross section. IVhen therefore, the hollow detachable head14 is introduced over the inner reduced and substantially elliptical enaof boit id wah their major diameters in va common plane, it is quiteobvious that there is no engagement of threads, but on the contrary caporhead 14 instantly seats itself andv abuts upon the extreme inner endof the bolt, shown at l17,;Fi'gure l, the'- parts then being in therelative positions shownby Figure 4.

It being desired now to securely 'interlock the bolt head and bolt',this is quickly accomplished by a quarter turn of the formerhfrom theposition shown by Figure 4 to that shown by Figures 5 and 1 whereuponall threads are instantly engaged, thev head 14 being thus securely butat the same I time detachablyyjammed upon the end of its bolt. y f

In operation the bolt is-used very .much as ordinary bolts are usedforsetting upl purposes,' but after serving this purpose it l l'may beinstantly removed without injury` to. the parts and without anyappreciable Aloss of time in the following approved inanner. A

Head 14 is first rotated about one-quarter turn until all threads 12 and15 are disen' gaged whereupon `said head is removed bodily andWithout'obstruction, a blow of -a hammer then instantly drives bolt 10and nut 11 bodily from the' rivet holes whichthen as quickly receive theinal rivet in the usual manner.

This being a description of my invention in its best form ofconstruction at present known to me, it should be clearly understoodthat I do not consider myself limited to the same. The form shown anddescribed is rather an exemplification of the invention, involving incombination a set- -up bolt having a threaded shank, an in-.stantly'detachable hollow head, and means for instantly interlockingsaid threaded shank and head. t

As shown by the present drawings, the detachable head is a solid head ofcap-like formation having a threaded pocketin its center which does notgo completely through, but leaves'a solid top to the head so that therewill be a solid surface for the bolt end to butt against thus linsuringgreater mechanicalI strength to the assembled bolt.- The. thread isomitted or re-A .moved for a certain distance on the two opposite sidesof the hole, leaving a certain percentage of thread of the original or ordinary size, the balance of the hole being smooth and of greaterdiameter than the threaded portions. Likewise` as shown. the bolt-shankis threaded upon its inner, or head, end for engagement of thedetachable head, and here also a. certain percentage of the thread onthis end is omitted or removed at opposite sides, the area of threadsvomitted or removed corresponding to tlhat of the threads in thedetachable heat.

Obviously, however. it is quite within the spirit of my invention toomit or remove threads from t-he bolt-shank and from its cooperatingdetachable head at other than the positions shown by the presentillustrations andstill 'to` accomplish substantially the same results,and likewise the cross sectional area of the bolt shank and head membersrespectively, may be nvariously altered, it being important only that aseries or severalseries of radial projections or interrupted threads,upon the interiorof a detachable head, be staggered with relation to acorrelative series of projections or interrupted thread sections, uponabolt shank, so that the formermay clear the latter when the said headis 1. A ,setting-up bolt including a bolt n shank and a quicklydetachable bolt head provided upontheir mating surfaces respecF tivelywith projections arranged and adapted oto pass freely as said parts aremoved longitudinally into assembled relation and to interlock wheneither of said'parts is rotated, in combination with a pull-up nutthreaded upon the opposite end of said bolt shank. Y i

2. A sett-ing up holt including a bolt shank and a. quickly detachablebolt head provided upon their mating surfaces respectively withinterrupted' lscrew threads arranged and adapted to' pass freely as saidparts are moved longitudinally into assembled relation and to interlockwhen either ofisaid parts is rotated, in combination with a pullup nutthreaded upon the opposite end of said bolt shank.

3Q A setting up bolt including a bolt shank tion a bolt shank lthreadedupon both iends, a bolt head of cap-like formation threaded upon one end.of said shank and adapted to bottom on the extremity thereof, and apull-v up nut threaded upon the opposite end of said bolt shank.

5. A setting-up bolt including in combination a bolt shank, an unbrokenScrew thread cut upon one end of said shank. a screw thread upon theopposite end of said shank interrupted longitudinally, a -quicklydetachable bolt cap adapted. to bottom on thev a nut mounted upon oneend thereof` a head on the other end of said shank adapted to belclamped thereon by tightening the nut against work between said head andnut, and means for quickly releasing the head fromA such clampedposition independently of said nut and rendering said head slidablyadjustable longitudinally of the shank.

7. rThe combination with a bolt having a threaded shank, of a quickgripping and releasing nut associated with the threaded portion of theshank, and a compression nut mounted on said shank.

S. The Combination with a bolt having a shank provided with interruptedthreads, of a pair of independentnuts on said shank arranged to engagethe opposite sides of the work, one of said nuts having its threadsinterrupted and arranged for free sliding movement on the shank topermit the quick adjustment thereof in engagement with the work, theother nut. being adapted to be slowly and forcibly moved into engagementwith the work.

9. The combination with a bolt having a threaded shank provided withdiametrically opposed longitudinally extending grooves interrupting said thread, of a pair of independent nuts on said shank arranged toengage the opposite sides of the wort, one of said nuts having athreaded bore provided at d'iainetrically opposite points with longitudinally extending grooves interrupting said threads, whereby saidnut is permitted free' sliding movement on said shank, theother nuthaving an umnterrupted thread formed in the bore thereof.

l0. The combination of a bolt including a threaded shank having a pairof diametrically vopposite longitudinally extending grooves formedtherein, a quick adjusting nut having its threaded bore provided with apair of diametrically opposed longitudinally extending grooves, meansfor limit ing rotation of said nut to engage said shank and a secondAnut having its bore provided with an uninterrupted thread.

ll. A setting-up bolt comprising a shank, an adjustable nut on one endof the shank, and a head on the other end of said shank, said head beingreleasable from said shank by a partial rotation and freely slidablelongitudinally of said shank after its release' therefrom.

1Q; A setting-up bolt comprising a shank.

'having a plurality of spaced lateral projections on one end thereof, aquick-releasable head having a plurality of spaced projections adaptedto interlock with said projections on the shank, said head heiligadapted to slide longitudinally of the shank with its said projectionspassing between the vprojections on said shank, said projections on thehead interlocking with the said projections on'the shank to preventlongitudinal sliding of the head on the shank upon a partial rotation ofsaid head, and an adjustable nut 'on the other end of the shank.

13. A setting-up bolt comprising a shank', an adjustable nut on one endof the shank, a head on the other end of said shank, said -head beingreleasable from said shank by al partial rotation andfreely slidablelongitudinally of said shank after its release therefrom, and means forlimiting rotation of said head.

14. A setting-up bolt comprising a shanl threaded at both ends, a nutthreaded on one end of said shank and longitudinally adjustable thereon,and a. head threaded upon the opposite end of the shank and adapted torelease itself from the work and from the shank by a partial rotation.

15. ln a. setting-up bolt, the combination of a shank threaded at oneend thereof and having the threads eut away atI opposite 'longitudinalportions thereof, a head threaded on said end of the shank and havingopposite longitudinal portions of the threads thereof cutaway so thatupon a partial rotation the threaded longritudinall portions of the headare brought opposite the cutaway longitudinal portions of the shank andthe head is released from the work and ,the shank and is free to slidelongitudinally of the shank` means for limiting relative rota tion ofsaid shank and said head to vengage each other, and a longitudinallyadjustable nut on the other end of said shank opposite said head.

16. A setting-up bolt including a bolt shank and a quickly detachablebolt head Aprovided upon their mating surfaces respecshank, and meansfor limiting movement of said head longitudinally of said boltl toproperly position said projections on the head end of the bolt to limitlongitudinal movement of the head on the bolt to properly p0- sit-ionsaid projections on the head and bolt to admit of relative rotation ofsaid head and bolt and said closed end also jamming upon the end of thebolt when the head and bolt are relatively rotated to limit saidrelative rotation. in Con'ibination with apull-up nut threaded upon theopposite end of said bolt shank. 1

In testimony whereof I afiix my signature,`

in presence of two subscribing Witnesses.

HERBERT J. MATHIAS. Vitnesses: Y WILLIAM MATHIAS,

' J. E. DAWSON.

